Frankly i can't recall such a strong first movie for a new director in many years. The cinematography is great, the acting is strong and the story line, even if not groundbreaking, is stellar.
I think the main idea here is how humans cope with loss (both losing something physical and losing intangible parts of yourself) & how we perceive reality. The director manages to combine 3 different genres in the movie so if you'd see just a short segment from the beginning, the middle & the end you'd think they are 3 different movies. I really don't want to tell anything specific about the movie as i feel that by telling some of the story-line i'll ruin the experience.
The biggest problem i saw was the music, sometimes when the actors were talking the music plays very loud so you can't hear what they say, this is a shame since this isn't a Hollywood movie where you can get the idea even if you won't listen to half of the movie.
For me the greatest achievement of this movie is that it'll stay in your mind for a while so you can think and ponder regarding what happened, how this applies to you and at least for me several other lines of thought.
P.S. The movie is based on a novel by Andrei Salomatov "G" (I didn't read it yet but some of the reviews said that the movie is better then the book, so beware, muahahahaha;)